1 files changed, 37 insertions, 0 deletions
diff --git a/src/beam-parameters.h b/src/beam-parameters.h
new file mode 100644
index 00000000..84d95b49
--- /dev/null
+++ b/src/beam-parameters.h
@@ -0,0 +1,37 @@
+/*
+ * beam-parameters.h
+ *
+ * Beam parameters
+ *
+ * (c) 2006-2010 Thomas White <taw@physics.org>
+ *
+ * Part of CrystFEL - crystallography with a FEL
+ *
+ */
+
+
+#ifndef BEAM_PARAMETERS_H
+#define BEAM_PARAMETERS_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+struct beam_params
+{
+	double fluence;        /* photons per pulse */
+	double beam_radius;    /* metres */
+	double photon_energy;  /* eV per photon */
+
+	double dqe;            /* Detector DQE (fraction) */
+	double adu_per_photon; /* Detector "gain" */
+
+	double water_radius;   /* metres */
+};
+
+
+extern struct beam_params *get_beam_parameters(const char *filename);
+
+
+#endif	/* BEAM_PARAMETERS_H */